The Logitech K400 Plus is designed for couch use with TVs, media centers, and smart TVs. Its integrated touchpad allows for easy navigation without a separate mouse. It uses Logitech's Unifying receiver for a reliable wireless connection.
The Logitech MK275 is a budget-friendly wireless combo designed for basic home and office use. It offers reliable performance with Logitech's Unifying receiver technology for a stable connection. The 1000 DPI mouse is suitable for general computing tasks but not for gaming or high-precision work.